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T I P S F O R E X T E D E D E N G I N E L I F E
cylinder in Saito engines elongates
more than the valve and the clearance
gets larger as the engine heats up.
Therefore, in cold conditions the
clearance should be virtually zero.
After several hours of running the
occasional check of the tappet clear-
ance can be performed quite easily.
Once the engine is cool set the engine
up as described above (intake closed
and at top dead center) and check to
see if you can slide the included feeler
gauge (0.10mm thick-ness) between
the tappet and valve. If you can it is at
its absolute maximum and valve tappet
adjust-ments should be made. If you
cannot slide the feeler gauge between
the two, then your adjustment is fine
and nothing further needs to be done.
Tips For Extended
Engine Life
To add longer life to your Saito
™
engine the following recommendations
are made:
1. Use a fuel 20:1 gasoline to oil ratio.
2. Use recommended spark plugs.
3. Use the proper propeller size and
balance the propeller prior to use.
4. Use a tachometer for precise engine
adjustments.
5. For long-term storage, make sure
there is no fuel left in the tank,
caburetor and the engine. Store the
engine in the box or on the airplane
with the nose down in order to keep
oil in the bearings.
FG-57T Needle Valve
Target Positions
High Speed - 2 turns + 50 minutes
Low Speed - 4 turns + 10 minutes
Spark Plug Gap
Please maintain your spark plug gap
between 0.7mm (0.027") and 0.8mm
(0.031")
